<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script>
        alert("1420038345634918401");
    </script>
</head>
<body>
   <form action="" method="post" enctype="multipart/form-data">
       <input type="file">
   </form>
</body>
</html>